Visual dilating tube

Abstract

The application discloses a visual expansion tube and relates to the technical field of medical devices, which comprises a sleeve, a handle part and an expansion body, a water injection pipe is arranged in the sleeve, the handle part is arranged at one end of the sleeve, one end of a water inlet of the water injection pipe is arranged to pass through an axis of the handle part, the expansion body is arranged at the other end of the sleeve, one end of a water outlet of the water injection pipe is arranged to extend to one end of the expansion body away from the sleeve, the expansion body is formed by sequentially stacking a plurality of water bags, a water guide pipe is arranged between two adjacent water bags, a water inlet of the water guide pipe is arranged at one end of an inner water bag close to the sleeve, a water outlet of the water guide pipe is arranged to be folded after extending out of the inner water bag and is arranged to spiral around an outer wall of the inner water bag to one end away from the sleeve. The application can realize step-by-step expansion of the expansion body by water injection, slowly expand the esophageal stenosis, thereby avoiding the pain of patients caused by repeatedly entering and exiting the esophagus by using an expander, reducing the operation difficulty, the operation pressure and the working strength of doctors.

Description

Technical Field

[0001] This application relates to the field of medical device technology, specifically to a visual expansion tube. Background Technology

[0002] Esophageal dilation surgery is usually performed using a gastroscopy. The narrowed area is widened by using a dilator. Generally, a small dilator is used first, and then a larger dilator is gradually used to widen the narrowed part. This method of dilation, which involves repeatedly moving the dilator in and out of the esophagus, increases the patient's pain, as well as the difficulty of the surgery and the workload of the doctor. Summary of the Invention

[0003] The main purpose of this application is to provide a visual dilation tube, which aims to solve the problem that the use of dilators to repeatedly insert and exit the esophagus for dilation in the prior art increases patient pain and surgical difficulty.

[0004] The technical solution adopted in this application is as follows:

[0005] A visual expansion tube, comprising:

[0006] A sleeve, wherein a water injection pipe is provided inside the sleeve;

[0007] The handle is located at one end of the sleeve, and the inlet end of the water injection pipe extends out from the axis of the handle.

[0008] An expander is disposed at the other end of the sleeve. One end of the water outlet of the water injection pipe extends to the end of the expander away from the sleeve. The expander is composed of multiple layers of water bladders stacked in sequence, and a water inlet pipe is provided between two adjacent layers of water bladders. The inlet of the water inlet pipe is located at the end of the inner water bladder close to the sleeve. The outlet of the water inlet pipe extends out from the inner water bladder and is in a closed state, and spirals around the outer wall of the inner water bladder once to the end away from the sleeve.

[0009] Furthermore, the handle portion is provided with an elastic clamp to clamp the water injection pipe.

[0010] Furthermore, the resilient clamp includes:

[0011] A tapered chuck is slidably installed in a pre-set tapered hole in the handle portion;

[0012] A column rod, which is fixed to the outer end face of the tapered chuck;

[0013] A pressing head is fixed to the end of the column rod away from the conical clamp;

[0014] A spring is disposed between the pressing head and the handle portion, and is sleeved on the column rod.

[0015] Furthermore, the front and rear ends of all the water bladders are integrally fixed to the water injection pipe.

[0016] Furthermore, the water bladder has 5 to 7 layers.

[0017] Furthermore, a pipe connector is provided at one end of the water inlet of the water injection pipe.

[0018] Compared with the prior art, the beneficial effects of this application are:

[0019] This application proposes a visual dilator tube, which connects the handle to the dilator body via a sleeve. Water is injected into the dilator body using an injection tube. Since the dilator body is composed of multiple layers of water-filled bladders, and there are drainage tubes between adjacent bladders that are in a naturally closed state, water is injected sequentially from the inside out. Only when the inner bladder is fully inflated will the water flow open the closed drainage tubes, allowing water to enter another bladder layer. This achieves gradual dilation of the dilator body, slowly dilating the esophageal stenosis. This avoids the pain caused to the patient by repeatedly inserting and removing the dilator into the esophagus, reduces the difficulty of the surgery, and decreases the surgical pressure and workload of the surgeon. Furthermore, the injection of cold water into the water-filled tube during the dilation process has a certain hemostatic effect, which can assist in intraoperative hemostasis. Attached Figure Description

[0020] Figure 1 A schematic diagram of the state structure of the visual dilation tube provided in the embodiment of this application when fixing the endotracheal tube;

[0021] Figure 2 This is a schematic diagram of the water pipe layout;

[0022] Figure 3 This is a schematic diagram of the handle section.

[0023] Explanation of the labels in the attached drawings:

[0024] 1-Casing, 2-Water injection pipe, 201-Water inlet of water injection pipe, 202-Water outlet of water injection pipe, 3-Handle, 4-Expanding body, 401-Water bladder, 402-Water inlet pipe, 403-Water inlet of water inlet pipe, 404-Water outlet of water inlet pipe, 5-Elastic clamp, 501-Conical clamp, 502-Column rod, 503-Pressing head, 504-Spring. Detailed Implementation

[0025] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0026] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0027] In this application, unless otherwise expressly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0028] Furthermore, if the embodiments of this application involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0029] See attached document Figures 1 to 3As shown, this application provides a visual expansion tube, including a sleeve 1, a handle 3, and an expansion body 4. The sleeve 1 is a hollow tube with a water injection pipe 2 inside. The handle 3 is integrally formed at the rear end of the sleeve 1 and has a circumferential channel. One end of the water inlet 201 of the water injection pipe extends through the channel, and a pipe connector is integrally formed at the water inlet 201 for connecting a water injection device (such as a syringe) for water injection. For ease of understanding, in order to stop water injection by clamping the water injection pipe 2 as needed during the injection process, in one embodiment, see [reference needed]. Figure 3 As shown, the handle part 3 is provided with an elastic clamp 5 for clamping the water injection pipe 2. There are two elastic clamps 5, which are symmetrically arranged on the two outer side walls of the handle part 3. Specifically, the elastic clamp 5 includes a conical clamp 501, a column rod 502, a pressing head 503, and a spring 504. The outer side wall of the handle part 3 is provided with a conical hole perpendicular to the axis of the handle part 3. The conical clamp 501 is slidably installed in the conical hole. The column rod 502 is integrally formed on the outer end face of the conical clamp 501. The pressing head 503 is integrally formed on the end of the column rod 502 away from the conical clamp 501. The spring 504 is arranged between the pressing head 503 and the handle part 3 and is sleeved on the column rod 502. Therefore, when it is necessary to clamp the water inlet pipe 2, simply press both pressing heads 503 simultaneously with your fingers. The pressing heads 503 will push the conical clamp 501 inward to clamp the water inlet pipe 2. After the pressing heads 503 are pressed, the spring 504 is in a contracted state. When it is necessary to continue water injection or after water injection is completed, release the pressing heads 503. The spring 504 will spring the pressing heads 503 back up, thereby releasing the conical clamp 501 from the water inlet pipe 2.

[0030] Furthermore, in this embodiment, the dilator 4 is disposed at the other end of the sleeve 1, and one end of the water outlet 202 of the water injection pipe extends to the end of the dilator 4 away from the sleeve 1. The dilator 4 is composed of multiple layers of water bladders 401 stacked sequentially, and the front ends of all water bladders 401 are integrally fixed to one side of the water outlet 202 of the water injection pipe, and the rear ends of all water bladders 401 are integrally fixed to the outer wall of the water injection pipe 2. Since the front ends of all water bladders 401 are together and the rear ends of all water bladders 401 are together, all water bladders 401 have the same length but different thicknesses. All water bladders 401 are in a deflated state when not filled with water. The innermost water bladder 401 is filled with water through the water injection pipe 2. Usually, 5 to 7 layers of water bladders 401 are sufficient to meet the dilation requirements of the esophagus. In addition, a water inlet pipe 402 is provided between two adjacent water bladders 401. The water inlet pipe 402 is used to realize the water bladder 401 expanding layer by layer from the inside to the outside. In the two adjacent water bladders 401, the water inlet 403 of the water inlet pipe is located at the end of the inner water bladder 401 close to the sleeve 1. Since the end of the water bladder 401 close to the sleeve 1 is on top when the expander 4 is inserted into the esophagus, the water inlet 403 of the water inlet pipe is designed to be located at the end of the inner water bladder 401 close to the sleeve 1. In this way, water will only be introduced into the next outer water bladder 401 through the water inlet pipe 402 after the inner water bladder 401 is full, thereby realizing the layer-by-layer expansion of the water bladder 401. Meanwhile, to prevent the narrowed part of the esophagus from compressing the water sac 401, causing the water inlet 401 to flow into the next outer water sac 401 before it is fully filled, the outlet 404 of the water inlet 404 extends from the inner water sac 401 in a closed state and spirals around the outer wall of the inner water sac 401 to the end away from the sleeve 1. To explain the closed state, it is like folding a flexible tube in half; the bend is the closed state. Figure 2 Point A is the folded-off point. As can be imagined, since the water inlet tube 402 extends from the inner layer to the outer layer and is in a folded-off state, when the esophagus is narrow, the esophagus squeezes the water sac 401, causing the folded water inlet tube 402 to be folded off by the esophageal pressure and unable to release water. Therefore, only when the water pressure of the inner water sac 401 is sufficient, that is, after the inner water sac 401 is fully expanded, can the water pressure open the folded water inlet tube 402, so that the inner water sac 401 is fully expanded, and at the same time the water flows to the next outer water sac 401, thus realizing the layer-by-layer expansion of the water sac 401.

[0031] In summary, the method of using the visual expansion tube provided in this application embodiment is as follows:

[0032] Based on the optimal water injection volume tested in advance, and with a written instruction manual specifying the water bladder 401 to be injected into each layer of water bladder 401, water can be injected into the bladder using a regular clinical syringe.

[0033] According to the instructions, insert the shrunken dilator 4 along with the cannula 1 through the biopsy port of the endoscope and into the esophagus with the endoscope. Under endoscopic visualization, position the closed position of the water inlet tube 402 at the narrow part of the esophagus. Then, under endoscopic visualization, inject water externally through the water inlet of the water inlet tube 2 reserved in the handle 3 to fill the water bladder 401 layer by layer until it is filled to the size suitable for esophageal dilation. After dilation, remove the water and pull the device out of the biopsy port.

[0034] The above description is only a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A visual expansion tube, characterized in that, include: A sleeve (1) is provided inside the sleeve (1); Handle (3), the handle (3) is disposed at one end of the sleeve (1), and one end of the water inlet (201) of the water injection pipe passes through the axis of the handle (3); An expansion body (4) is provided at the other end of the sleeve (1). One end of the outlet (202) of the water injection pipe extends to the end of the expansion body (4) away from the sleeve (1). The expansion body (4) is composed of multiple layers of water bladders (401) stacked in sequence, and a water inlet pipe (402) is provided between two adjacent layers of water bladders (401). The inlet (403) of the water inlet pipe is located at the end of the inner layer water bladder (401) close to the sleeve (1). The outlet (404) of the water inlet pipe extends out from the inner layer water bladder (401) and is in a closed state, and spirals around the outer wall of the inner layer water bladder (401) once to the end away from the sleeve (1).

2. The visual expansion tube according to claim 1, characterized in that, The handle (3) is provided with an elastic clamp (5) for clamping the water injection pipe (2).

3. The visual expansion tube according to claim 2, characterized in that, The elastic clamp (5) includes: A tapered chuck (501) is slidably installed in a pre-set tapered hole in the handle portion (3); A column rod (502) is fixed to the outer end face of the tapered chuck (501); Press head (503), the press head (503) is fixed to the end of the rod (502) away from the conical clamp (501); A spring (504) is disposed between the pressing head (503) and the handle portion (3) and is sleeved on the rod (502).

4. The visual expansion tube according to claim 1, characterized in that, The front and rear ends of all the water bladders (401) are integrally fixed to the water injection pipe (2).

5. The visual expansion tube according to claim 1, characterized in that, The water bladder (401) has 5 to 7 layers.

6. The visual expansion tube according to claim 1, characterized in that, A pipe joint is provided at one end of the water inlet (201) of the water injection pipe.

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